hkakizawa.jp

Issued by R3

About this certificate

This digital certificate with serial number 03:c6:58:bd:94:5b:f3:1d:3e:c1:de:65:bf:ad:09:2d:56:ed was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=hkakizawa.jp

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:c6:58:bd:94:5b:f3:1d:3e:c1:de:65:bf:ad:09:2d:56:ed
Serial Number (int): 328830722862443515726700800175093781976813
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bf:fa:07:1f:0d:06:64:cd:43:79:10:ca:3b:d1:1b:53:6d:2c:64:16
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 04:09:7d:63:ff:92:8f:18:68:4c:74:60:63:d6:4f:89:b5:2a:e9:7e
Fingerprint (sha256): be:75:c8:3b:39:af:4a:d9:5c:2b:76:a8:b2:51:8c:e2:8d:a2:12:d7:79:2b:0e:1c:5c:ed:b3:ae:d1:bd:2a:27

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate hkakizawa.jp

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for hkakizawa.jp

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

hkakizawa.jp

Other certificates including the domain name hkakizawa.jp

(limited to 100 certificates)
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
hkakizawa.jp
hkakizawa.jp
www.hkakizawa.jp
hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
hkakizawa.jp
hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp
www.hkakizawa.jp

Certificate

The complete raw certificate details for hkakizawa.jp in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq0JVYc+mwkcpbk4gNfpC
bzLx/3HzchNZUCf+EKRtwY7zZ1A3PAZ235xErHPYrB0mL5Dib2TFFXNSh7st1cVd
f1wQXZ3KznUQG3CAOrkdl2Vex2DSS3N9Ju1WOz5baFeyMYvcwaS4YaSigcLl2lVX
RNeQLRHxoqC7MmsyG0PqWweBBszrNYHhKvWqzqk3apz3ZpJsaT+wlYedXUVmnkKb
48Gqih3CsgHQ3ETB+A/fuGJFbcFQKi0OGaKZNKqbATHWD+eAku/BBpvlpPr2DqMn
4tKQKFlIabyc4OXHLqDJtEa+r1K/2bQftwv5/vAX1JgjGJRr7qQAoy6bvGeI96X/
ZQIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 328830722862443515726700800175093781976813
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-08-29 09:21:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-27 09:21:52 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'hkakizawa.jp'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21619460428875873353080338878776042603458803586164783346580649868217325109597795672056007553639728107586563169017585371723551369915394339346110511243902317665976527791042787123475769839787836110599067257934887804711216320547934340117126568951190013420702273399207836638228311288017251959955366842669237028430816613130035928054847262389568633146625957447107508595090710556828731124010354636194383108115551848826784240823476006933639939403297391357188524378677542087228337832922529774924221672929924130217532854492757784546930346515458331609505926487449910883134999967117812375196069970474833963218708882124076034162533
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							bffa071f0d0664cd437910ca3bd11b536d2c6416
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hkakizawa.jp'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a40d065f70000040300473045022100dde17870ea4093633703a7bbe39d388b178e4d637906ad2ccc6a5a17045c46e102205543fca459f372db7518265d3ac9735ddaa5d2151bf11d93f3b2678dd7597327007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a40d06637000004030047304502201f758d433d1f195146872009a7758bc0a8af6eefb4d1141ffbb2ecd2cb215e68022100fbb47ea47483c430b22dc72b5990c7173ef6d724c63cd6f4571b6820fef8348a
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		0078c743130ee79c6acd0f52030eab43632b74168abb2be16e7423e5579ce76491da810185b5725b1b160a1e696f41e59a8357c907833ce523744621673d9381b8cbfafcd28746cfa09093f1388f0c351c0d15f1b9f5828ae2f2d04990a12aecfd6c1f900cdcac76ab498674ea4c8202bd9b54ab18c8cca1c58aea5908304557f6b527182f05e7529d6ae0a951838cfe3850232c1abde04464be5f5ffb3b73379669f235b315d22e440bd387c9083d1efb0dca11d32a5175c09dfe8c606810a8b066a77cb4b163d08e4c76b0ecc358f9a8e48eb2b69b174ce5ff3981837af38b1565d64fbe31f2d5807c83aaa88d6213ea206405f3f9e38dbcde4d4d2799327e7c